Automatic pump for tires.



No. 895,838. PATBNTED AUG. 11, 1908,

J. U. BOOTH.

AUTOMATIC PUMP FOR TIRES.- APPLICATION FILED AUG.16, 1906.

wheel will be .25

tratin the pump controlling mechanism;

JAMES o. BOOTH, or COLUMBUS, OHIO.

AUTOMATIC PUMP FOR TIRES.

Specification of Letters Iatent.

- Patented Aug. 11, 1908.

Application filed August 16, 1900. Serial N0. 330,800.

tion, reference being had therein to the ac companying drawin This invention rel ates to wheels, and the invention relates more'particularly to pneumatic wheels, as used upon motor driven vehicles.

The object of this invention is to provide novel means in connection with a pneumatic tired wheel to. normally maintain the tire thereof in an inflated condition.

To this end, Ipro-vide awheel with an automatically actuated pump controlled by the chauffeur; of the vehicle. To operate the pump, I use the revoluble motion of a wheel in conjunction with an eccentric and clutch.

The detail construction of my improved resently described and then specifically pointed out in the appended c aims.

Referring to the drawing forming part of this specification, like numerals of reference designate corresponding parts throughout the several views, in wh1ch:

Figure 1 is'an-elevation of the inner side of a wheel with the improved'device applied and partly in section, Fig; 2 is an edge view of the same, partly .in section, Fig. 3 is an edge view of two wheels journaled upon an axle, illus- In t e accompanying drawmg, I have illus-' trated an axle 1, as having'two neum'atic wheels 2 journaled upon the spin les 3, said wheels consisting of hubs 4, spokes 5, a rim 6 and a pneumatic tire 7 each usual air valve, indicated through the rim thereof;

The automatically actuated ump, together with the o crating mechan sm of each wheel is identica therefore I deem it only necessary to describe the mechanism carried by one of said wheels. p My invention resides in providing'the inner sides of the spokes with a two-part cirat- 22, operating cular'plate 8, the parts of said plate surroundmg the spindle 3 of the axle 1, and being flanged as at 9, and secured together by bolts and nuts 10. In addition to being secured together, the two arts of the circular plate are fastened to tide spokes 5 by clips 11,

' is provided wit tire having the .mounted at a suitable whereby it may mechanism, but it wi which embrace some of said spokes. The

.two-part circular plate is' provided with a peripheral tongue 12 and surrounding said plate is a two-part eccentric 14 having a circumferentially arranged groove to receive the tongue 12 of the two-part circular plate 8. Theparts of the eccentric 14 are secured together, as at 15, similar to the two-parts of the circular plate 8. The inner face of the eccentric is provided'with a lu or protuberance 16, the object of which wilIpr'esently appear. A I

The periphery of the eccentric 14 is provided with a peri heral groove 17, to receive a circumferential T arranged tongue carried by a two-part eccentric ring or band 18, the parts of said band or ring being secured together as at 19. The rim 6 between two of the spokes is provided with two lugs 20, and pivotally connected to said lugs is a pump cylinder 21 having a flexible connection 22, which connects with the usual air valve tube of the tire 7. In the ump cylinder 21 is mounted a conventions? form of piston head 23 having an ordinary flap or air inlet valve. The piston head 23 is connected to the eccentric band orring 18 by a piston rod 24, said rod being pivotally connected to the band or ring as at 25. The axle l-adjacent to each wheel is provided. with a bracket 26 carrying an outwardly extending arm 2'7.- In the bracket 26, is mounted a rod 28, which conn'ects, as at 29, with a bell crank lever 30 ivoted as at 31, u on the arm 27. The re 28 l fa-stop-collar 32 adapted to limit the movement of said rod towards'the wheel. The bell crank lever 30 is to a rod 23, which extends in close proximity to the drivers seat'of the vehicle.

'Inorder that the rods 28 upon'both sides of the vehicle can be simultaneously oper-j ated, straight levers 30 are used upon one side of .the vehicle in lieu of the bell crank levers 30; the levers 3 0 connecting by a rod34 with a bell crank lever 35 which is pivotally placeupon the vehicle, be connectedto the rod 33.

I have simp y illustrated one of the axles of the vehicle as equi ped with my improved be understood that its associate axle is similarly equi ped and controlled from the drivers seat 0 the vehicle.

-- \Vhile the vehicle is in operation, the/rods 28 1 are normally maintained in the-position" shown'inthe accompanying drawings, b t

connected berances 16 of the eccentric 14 carried should one of the tires.7 be punctured or a leakage of air occur, the pump linder 21 of the injured wheel is immediate placed in operation to su ly the tire 7 with airL is accomplished by throwin the pins 28 outwardly until they engage t e lugs or rotu- Ey-the wheels of the vehicle. Since the wheels are journaled u on the axle 1, the eccentric 14 will 'be hel stationary and the revolving pump cylinder 21 will be actuated throu h the medium of the eccentric band 18 and the piston rod 24 tire.

When the rods 28 are in their normal posi-.

tion, the eccentric 14, together with the various parts carried by the wheels of the vewhilet lie pump cylinder21 is in operation.

I do not care to confine myself to the type of pneumatic Wheel upon which my improved pump is used, or to the manner of controllin the 0 eration of the same, as ordinary. sa ety va ves may be provided upon the tire 7, to prevent their bursting by an overcharge of air, or the valves may be placed upon the pump cylinders 21.

Such changes in the details of construc 'tion, as are permissible by the appended claims,'may be resorted to without departing from the spirit and scope of the invention.

What I claim and desire to secure by Letters Patent, is:

1. The combination with an axle having wheels journaled thereon and pneumatic tires carried by said wheels and I with air valves operative through the rims thereof, of

cireula'r plates secured to said wheels, eccene trlcs revolubly mounted upon said plates and each having a laterally inward extending stop lug, and laterallyextending flanges adapted to receive fastening means, eccen- This to pump air into the injured tric bands mounted upon said eccentrics, pum cylinders pivota ly carried by said whee s adjacent to the tires thereof and connecting with the air valves of said tires, pistons operating in said cylinders and connect ing with said eccentric bands, rods slidably mounted upon said axle and adapted to engage the stop lugs of said eccentrics, and means to move said rods, substantially as described.

2. The combination with a vehicle including the axle having wheels mounted thereon and provided-With pneumatic tires, each tire provided with an air valve operative through the rim of the wheel, spaced ears extending from said rim adjacent to said valve, a pump provided with a reciprocating plunger pivoted to said-ears, a circular plate secured to said wheel concentric to its axle, an eccentric device rotative upon said plate, a band inclosing said eccentric device, connecting means between said band and pump plunger, and means under the control of the operator for holding the eccentric device in stationary position; I

3. The combination with a vehicle including the axle having wheels mounted thereon and provided with pneumatic tires, each tire provided with an air valve operative through the rim of the wheel, spaced ears extending from said'rim adjacent to said valve, a pump, provided with a reciprocating plunger and pivoted to said ears, a circular platesecured to sald wheelconcentric to lts axle, an eccentric device rotative upon said plate and provided. with a lateral stop, a band inclosing said eccentric device, connecting means between said band and pump plunger, a guide bracket carried by said axle, a stop rod'movable through said bracket and adapted to be projected into the path of said lateral stop, and means under the control of the operator for actuating said st'op rod;

In testimony whereof I afiix my signature in the presence of two witnesses.

JAMES c. BOOTH.

Witnesses;

MAX H. S'RoLovrrz, J Boo'rn. 

